Top AdSense countries

@Dani — interesting observation. Seeing smaller or unexpected countries top an eCPM list happens fairly often; the raw country ranking alone isn’t proof of sustained, high-value traffic. Below are the most common explanations and a short verification checklist to separate real demand from reporting noise or fraud.

Low sample sizes and reporting quirks are the top culprits. With few impressions a single high‑paying click will spike eCPM. Currency conversions and account timezone/currency settings can distort per‑country RPM. Geolocation can be wrong when users use proxies, CDNs, mobile carrier NATs, or VPNs. Programmatic oddities — a one‑off direct deal, private auction, or buyer targeting — can send premium CPMs to a low‑volume geo. Finally, invalid/bot traffic sometimes concentrates in unusual countries and can temporarily inflate metrics.

Remember the math: eCPM = (Revenue / Impressions) * 1000. Treat per‑country eCPMs with caution when impressions are small (for example, <1,000). For a stable view use a weighted metric: Weighted eCPM = (total revenue across countries / total impressions across countries) * 1000.

Checklist (quick verification steps):

• Extend the date range to 30–90 days and re-run the country report.
• Show impressions, clicks, CTR and CPC by country; flag geos with very low impressions.
• Break results down by page and ad unit to find single pages driving skew.
• Cross‑check traffic source, session duration and referral patterns in Analytics for bot‑like behavior.
• Review AdSense invalid traffic reports and the Ad Review Center; confirm account currency/timezone.
• If evidence points to invalid activity, collect timestamps and IP samples and file an inquiry with Google; if legitimate, use custom channels or targeted tests to try to replicate and scale the demand.

High eCPMs in odd countries are usually a blend of small samples, attribution/bidding quirks, or invalid traffic — verify with the checklist before treating them as a reliable growth signal.